The SoySim model simulates soybean growth on a daily basis from emergence to full maturity (R8). This version of the program simulates soybean yield potential and water use plus irrigation requirements under non-limiting conditions, assuming both optimal nutrient supply and no yield losses from abiotic and biotic factors.

SoySim had been validated at irrigated research and field sites in Nebraska, Iowa, and Indiana at which agronomic inputs were optimized to allow a full expression of yield toward yield potential. The results indicated that the model was able to simulate above ground and seed dry matter with reasonable accuracy compared to other existing models. SoySim achived desirable results even with far less cultivar-specific input parameters as compared to other models

More information for the model is provided in the SoySim User Manual

Purchase SoySim

For simulation of yield potential, the model requires daily weather data for solar radiation and maximum and minimum temperatures. For simulation of the water use and irrigation recommendation, the model requires daily weather data for solar radiation, maximum and minimum temperature, rainfall, reference evapotranspiration, and relative air humidity.